List of usage examples for org.apache.commons.csv CSVStrategy clone
public Object clone()
From source file:org.apache.camel.dataformat.csv.CsvDataFormat.java
private static CSVStrategy cloneCSVStrategyIfNecessary(CSVStrategy csvStrategy) { for (Field field : CSVStrategy.class.getFields()) { try {//w w w .j a v a 2 s .co m if (field.get(null) == csvStrategy) { // return a safe copy of the declared static constant so that we don't cause any side effect // by (potentially) other CsvDataFormat objects in use, as we change the properties of the // strategy itself (e.g. it's set delimiter through the #unmarshal() method below) LOGGER.debug( "Returning a clone of {} as it is the declared constant {} by the CSVStrategy class", csvStrategy, field.getName()); return (CSVStrategy) csvStrategy.clone(); } } catch (Exception e) { ObjectHelper.wrapRuntimeCamelException(e); } } // not a declared static constant of CSVStrategy so return it as is return csvStrategy; }
From source file:org.apache.solr.response.CSVResponseWriter.java
public void writeResponse() throws IOException { SolrParams params = req.getParams(); strategy = new CSVStrategy(',', '"', CSVStrategy.COMMENTS_DISABLED, CSVStrategy.ESCAPE_DISABLED, false, false, false, true);/* w w w . j a v a 2 s . c om*/ CSVStrategy strat = strategy; String sep = params.get(CSV_SEPARATOR); if (sep != null) { if (sep.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid separator:'" + sep + "'"); strat.setDelimiter(sep.charAt(0)); } String nl = params.get(CSV_NEWLINE); if (nl != null) { if (nl.length() == 0) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid newline:'" + nl + "'"); strat.setPrinterNewline(nl); } String encapsulator = params.get(CSV_ENCAPSULATOR); String escape = params.get(CSV_ESCAPE); if (encapsulator != null) { if (encapsulator.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid encapsulator:'" + encapsulator + "'"); strat.setEncapsulator(encapsulator.charAt(0)); } if (escape != null) { if (escape.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid escape:'" + escape + "'"); strat.setEscape(escape.charAt(0)); if (encapsulator == null) { strat.setEncapsulator(CSVStrategy.ENCAPSULATOR_DISABLED); } } if (strat.getEscape() == '\\') { // If the escape is the standard backslash, then also enable // unicode escapes (it's harmless since 'u' would not otherwise // be escaped. strat.setUnicodeEscapeInterpretation(true); } printer = new CSVPrinter(writer, strategy); CSVStrategy mvStrategy = new CSVStrategy(strategy.getDelimiter(), CSVStrategy.ENCAPSULATOR_DISABLED, CSVStrategy.COMMENTS_DISABLED, '\\', false, false, false, false); strat = mvStrategy; sep = params.get(MV_SEPARATOR); if (sep != null) { if (sep.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid mv separator:'" + sep + "'"); strat.setDelimiter(sep.charAt(0)); } encapsulator = params.get(MV_ENCAPSULATOR); escape = params.get(MV_ESCAPE); if (encapsulator != null) { if (encapsulator.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid mv encapsulator:'" + encapsulator + "'"); strat.setEncapsulator(encapsulator.charAt(0)); if (escape == null) { strat.setEscape(CSVStrategy.ESCAPE_DISABLED); } } escape = params.get(MV_ESCAPE); if (escape != null) { if (escape.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid mv escape:'" + escape + "'"); strat.setEscape(escape.charAt(0)); // encapsulator will already be disabled if it wasn't specified } returnScore = returnFields != null && returnFields.contains("score"); boolean needListOfFields = returnFields == null || returnFields.size() == 0 || (returnFields.size() == 1 && returnScore) || returnFields.contains("*"); Collection<String> fields = returnFields; Object responseObj = rsp.getValues().get("response"); if (needListOfFields) { if (responseObj instanceof SolrDocumentList) { // get the list of fields from the SolrDocumentList fields = new LinkedHashSet<String>(); for (SolrDocument sdoc : (SolrDocumentList) responseObj) { fields.addAll(sdoc.getFieldNames()); } } else { // get the list of fields from the index fields = req.getSearcher().getFieldNames(); } if (returnScore) { fields.add("score"); } else { fields.remove("score"); } } CSVSharedBufPrinter csvPrinterMV = new CSVSharedBufPrinter(mvWriter, mvStrategy); for (String field : fields) { if (field.equals("score")) { CSVField csvField = new CSVField(); csvField.name = "score"; csvFields.put("score", csvField); continue; } SchemaField sf = schema.getFieldOrNull(field); if (sf == null) { FieldType ft = new StrField(); sf = new SchemaField(field, ft); } // if we got the list of fields from the index, only list stored fields if (returnFields == null && sf != null && !sf.stored()) { continue; } // check for per-field overrides sep = params.get("f." + field + '.' + CSV_SEPARATOR); encapsulator = params.get("f." + field + '.' + CSV_ENCAPSULATOR); escape = params.get("f." + field + '.' + CSV_ESCAPE); CSVSharedBufPrinter csvPrinter = csvPrinterMV; if (sep != null || encapsulator != null || escape != null) { // create a new strategy + printer if there were any per-field overrides strat = (CSVStrategy) mvStrategy.clone(); if (sep != null) { if (sep.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid mv separator:'" + sep + "'"); strat.setDelimiter(sep.charAt(0)); } if (encapsulator != null) { if (encapsulator.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid mv encapsulator:'" + encapsulator + "'"); strat.setEncapsulator(encapsulator.charAt(0)); if (escape == null) { strat.setEscape(CSVStrategy.ESCAPE_DISABLED); } } if (escape != null) { if (escape.length() != 1) throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid mv escape:'" + escape + "'"); strat.setEscape(escape.charAt(0)); if (encapsulator == null) { strat.setEncapsulator(CSVStrategy.ENCAPSULATOR_DISABLED); } } csvPrinter = new CSVSharedBufPrinter(mvWriter, strat); } CSVField csvField = new CSVField(); csvField.name = field; csvField.sf = sf; csvField.mvPrinter = csvPrinter; csvFields.put(field, csvField); } NullValue = params.get(CSV_NULL, ""); if (params.getBool(CSV_HEADER, true)) { for (CSVField csvField : csvFields.values()) { printer.print(csvField.name); } printer.println(); } if (responseObj instanceof DocList) { writeDocList(null, (DocList) responseObj, null, null); } else if (responseObj instanceof SolrDocumentList) { writeSolrDocumentList(null, (SolrDocumentList) responseObj, null, null); } }